Equations of Motion

  1. What is the first equation of motion?
    • v = u + at
    • This equation relates final velocity (v), initial velocity (u), acceleration (a), and time (t)​.
  2. What is the second equation of motion?
    • s = ut + ½ at²
    • This equation gives the displacement (s) of an object in time (t) with initial velocity (u) and acceleration (a)​.
  3. What is the third equation of motion?
    • v² = u² + 2as
    • This equation relates the final velocity (v), initial velocity (u), acceleration (a), and displacement (s)​.
  4. Which equation of motion is used to find final velocity?
    • First equation
    • The first equation, v=u+atv = u + atv=u+at, is used to calculate the final velocity of an object in motion​.
  5. Which equation of motion is used to calculate displacement?
    • Second equation
    • The second equation, s=ut+½at2s = ut + ½ at²s=ut+½at2, helps in finding the displacement of an object​.
  6. Which equation is derived from the combination of the first and second equations?
    • Third equation
    • The third equation, v2=u2+2asv² = u² + 2asv2=u2+2as, is obtained by eliminating time (t) from the first two equations​.
  7. Which mathematical method is used to derive the equations of motion?
    • Graphical method
    • The equations of motion can be derived using velocity-time graphs​.
  8. What is the SI unit of displacement in the equations of motion?
    • Meter (m)
    • Displacement (s) is measured in meters, following the SI unit system​.
  9. What does the variable ‘u’ represent in the equations of motion?
    • Initial velocity
    • The variable ‘u’ represents the velocity of an object before acceleration starts​.
  10. What does the variable ‘a’ represent in the equations of motion?
  • Acceleration
  • The variable ‘a’ represents the rate of change of velocity per unit time​

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